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Need info on 306, 331, and 347

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Old 06-01-2012, 07:36 PM
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Mandrew
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Default Need info on 306, 331, and 347

I'm going to be building a new engine for my 89 5.0 mustang, I would like help deciding which to build, I dont plan on drag racing. Maybe some day but as of now I don't see it. I would just like a mean sounding, ground rumbling street car to make all my friends jellus and possibly street race some punks in their rice burners. Any advice is appreciated and I plan on building from a bare block I'm buying. Thanks! I'd like to see 400-500+ hp but REALY want to see at least 400hp.
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Old 06-01-2012, 09:23 PM
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jjw88mustang
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Not a hole lot to go off of, but you will probably need a power adder to get there
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Old 06-01-2012, 09:39 PM
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rydeordiegr
 
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I got a 88 with a 347 stroker wit 10.1 comp. victor jr. heads and 4bbl intake with a z cam and it made 372rwhp
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Old 06-01-2012, 09:44 PM
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Mandrew
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Well which engine would be best for an everyday driver/street car? 306,331, or 347?
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Old 06-01-2012, 10:23 PM
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rydeordiegr
 
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all 3 are fine for street use as long as you dont go crazy with compression and if your gonna spend the money to do it go with the more cubes
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Old 06-02-2012, 12:57 AM
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i've always heard the 347 is great but can have a problem with the connecting rods getting too much angle on them in comparison with the piston and causing wear problems. the 331 isnt stroked quite as much so i'd go with that one.
A 331 with a centrifugal blower running 8 pounds should put you right up where you want to be.
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Old 06-02-2012, 07:22 AM
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Mandrew
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Centrifugal blower? What exactly is that and how much do they cost?
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Old 06-02-2012, 01:55 PM
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What is a good efi intake to use for 400+ hp also? The polished cobra says it's only good up to 350hp. So i don't know which to go with now.
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Old 06-02-2012, 02:08 PM
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google centrifugal supercharger. procharger makes a good kit for 3k.
as for an intake, I'm not quite sure which one is best but i've heard good things about trick flow products.
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Old 06-02-2012, 03:38 PM
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Mandrew
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I've heard of good trick flo too but whAt makes one efi intake better than the next?
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